Wagon-bolster spring



(No Model.)

S. KING & 0. E. STIVERSQ WAGON BOLSTER SPRING.

No. 314,139. Patented Mar. 17, 1885.

' WITNESSES: v

N. PETERS. Phcloinhegraphar. Washinglnn. D. c.

UNITED STATES PATENT OFFICE.

THOMAS s. KING, OF ATLANTA, GEORGIA, AND CHARLES E. STIVERS, or

OHATTANOOGA, TENNESSEE.

.WAGON-BOLSTER'SPRING.

" SPECIFICATION forming part of Letters Patent No. 314,139, dated March 17, 1885.

v Application filed October .21, 188-1. (No model.)-

To all whom it 11mg concern.-

Be it known that we, THOMAS S. KING, a citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, and CHARLES E. STIvERs, a citizen of the United States, residing at Chattanooga, in the county of Hamilton and State of Tennessee, have invented certain new and useful Improvements in WVagon-Bolster Springs, of which the following is a description.

Figure 1 is a rear end elevation of a wagon provided with our improved bolster-spring. Figs. 2 and 3 are respectively a side and plan view, on an enlarged scale, of one end of the spring and its connections; and Fig. 4 is a side view showing a modification of the connections of the spring.

Our invention relates to the wagon-bolster spring patented by G. E. Blaine, February 13, 1884, No. 293,219, and August 20, 1884, No.

304,066; and it consists in the peculiar combination and arrangement of the same form of spring with respect to the stationary and mov able bolster, as will be hereinafter fully described.

In the drawings, A represents the lower or stationary bolster; B, the upper OFIDOVLblG bolster, and G the standards rising vertically at each end of the lower or stationary bolster.

D are the springs, whichin form do not differ materially from the spring described and shown in the aforementioned patentsi. e.,, they are composed of steel rods bent to form a loop at one end, the branches then extended parallel at a, and near their middle are bent into several coils, b, and then extended at eat an angle of about thirty degrees, and the ends then bent in toward each other, but not welded or fastened together. In forming these springs the upper arms, a, are made longer than the lower arms, 0, and the springs are arranged longitudinally with thebolsters, with the coils projecting beyond the ends of the same. The loop of the lower arms, a, is seated in a metal plate, D, secured to the under side of the lower bolster, and the inturned ends of the upper arms, a, are seated in bearings in a plate, E, attached to the ends of the upper bolster, which plate is shaped to partially embrace the standard and form a guide for the upper bolster as it vibrates vertically beside the standards.

In constructing the plates D and E for attaching the springs to the bolster we may make them as shown in Fig. 2, in which the plate D is fiat and simply bent into a half-round seat, and in which the plate E is flat, and is rolled up into a tube at one end andnotched at the other; or we may make them as in Fig.

4, in which plate D is bent up on the sides of the bolster, and notched to receive the loop, with several notches into which the loop may be adjusted farther in or out, and in which plate E is bent down at the sides and formed with holes into which the upper ends of the spring may be adjusted in or out. In any case the upper arms, a, of the Springs are made longer, so that the weight of the wagon-body in depressing the springs causes the coils b of the springs to rise, instead of moving downwardly, as in the constructions previously patented. This arrangement of the springs permits a better springing action to the upper bolster.

Having thus described our invention, what 5 we claim as new is- 1. The combination, with the upper and lower bolster of a vehicle, of the springs D, having their upper arms, a, longer than their lower arms, and arranged longitudinally with So the bolsters, with the coils I) projecting beyond the ends of the same, and plates connecting the ends of the springs to the bolsters, as described.

2. The combination, with the upper and 85,

lower bolster of a vehicle, of the springs D, arranged longitudinally with the same, with their coils b projecting beyond the ends of the said bolster, and plates for connectingthe bolster to the spring, which said plates have a 0 series of holes or seats for receiving and adj usting the springs, substantially as shown and described.

'II-IOS. S. KING. CHAS. E. S'IIVERS.

\Vitncsses to the signature of King:

Enwn. BYRN, CHAS. A. PErrI'r.

IVitnesses to the signature of Stivers:

J. E. READING, WINrHnoP BARR. 

